Type bar for typewriters and the like



Feb. 16, 1937. s. KHALIL TYPE BAR FOR TYPEWRITERS AND THE LIKE Filed Jan. 21, 1936 5 Sheets-Sheet l INVENTOR Emma AfiAL/z VMM+M ATTORNEYS S. KHALIL TYPE BAR FOR TYPEWRITERS AND THE'LIKE Peg. 16, 1937.

Filed Jari. 21, 1936 5 Sheets-Sheet 2 INVENTOR 5am K3421;

BY lfmmwmw ATTORNEYS Feb. 16, 1937.

S. KHALIL TYPE BAR FOR TYPEWRI'I'ERS AND THE LIKE Filed Jan. 21, 1936 5 Sheets-Sheet 3 INVENTOR SEYID KER-12 BY Z M/MIM ATTORNEYS Feb. 16, 1937. s. KHALIL TYPE BAR FOR TYPEWRITERS AND THE LIKE Filed Jan. 2]., 1936 5 Sheets-Sheet 4 2/ a g fl l -ue/l ATTORNEYS 5' Sheets-Sheet 5 s. kHALlL TYPE BAR FOR TYPEWRI'I'ERS AND THE LIKE Filed Jan. 21 less Feb. 16, 1937.

INVENTOR 1 smbfivdziz ATTORNEYS Patented Feb. 16, 1937 UNITED STATES PATENT OFFICE Seyed Khalil, New York, N. Y., assignor to Royal Typewriter Company, Inc., New York, N. Y., a corporation of New York Application January 21, 1936, 'Serial No. 60,025

13 Claims.

This invention relates to improvements in type bars for typewriters and the like, comprising a series of links, one of which .carries the type and the others cooperating therewith in the accomplishment of the result, thereby providing a new and novel typebar performance.

One object of the invention is the provision of a type carrying element of comparatively short length, normally spaced apart from the platen a distance greater than its length, and having associated therewith a plurality of links, which during a printing operation, is initially brought to a position near the platen with the links in substantially constant relation to each other;

after which, as the type advances to printing.

position, the relation of the links to each other is progressively changed and the movement of at least one of the links is reversed; thereby a suitable distance is provided between the type elements and the platen, and the momentum of the same is reduced, thereby reducing the noise produced by the type as it contacts the platen.

Another object of the invention is the provision of a typewriter including linkages between the key and the type carrier through which the force applied to the key is delivered to the type in increased'ratio from a position of the type adjacent to the platen up to the printing position; whereby clear characters. may be obtained and a large number of copies may be produced.

A further object of the invention is the provision in a typewriter of a type carrying member, a compound linkage, and a plurality of pivots connecting the member to the linkage, the latter being so arranged that as it is moved the pivotal movement of the member is about a point varying in position along a line between at least two of the pivots, thereby bringing one edge of the type into printing contact with the platen, and successively bringing the remainder of the face of the type into contact, with a rolling motion, and producing a neat, clean-cut impression.

Still, another object of the invention is the provision in a noiseless" typewriter of linkages between the keys and the type carriers including pivotal junctions which form close working fits; thereby preventing vibration, both horizontally and vertically, and eliminating misalignment and misplacement of the printed character.

A further object of the invention is the provision in a noiseless typewriter of a plurality of type carriers normally positioned side by side in arcuately-arrayed order of a radius of such length that the side members make comparatively obtuse angles with the plane of the platen present:

when in the printing position. This overcomes serious difliculties which are present in some machines of the prior art in which the type members are in arcuately arrayed order of a short radius and wherein the side members make acute 5 or critical angles with the plane of the platen.

Another object of the invention is the provision of a noiseless movement, the physical dimensions of which are such that it may be. mounted in the frames of existing ordinary typewriters.

Still another object of the invention is the provision of new and novel linkages between the keys and the type carriers, adapted to deliver the power from a key to its type carrier in increased ratio, whereby the operator, in accordance with his or her previous training, in actuating the keys, may obtain consistent results at any rate of speed. a

A further object of the invention is the provision of a type member, a key for actuating the same and linkages therebetween adapted to impart a rolling motion to the type and increasing pressure from a point adjacent to the platen up to the point of printing contact whereby neither the paper nor the carbon paper is harmed.

Other objects and advantages of the invention will hereinafter appear.

Generally speaking, the mechanical construction of typewriters requires a suitable space between the normal position of the typebars and the platen thereof. The spacing apart of the typebars from the platen is determined by several factors:

First. Many typewriters have forty two typebars, the total thickness of the arcuate array of which prevents the positioning of such typebars beyond a certain distance apart from the platen.

Second. The undesirable angularity of the typebars toward the extreme ends will become 40 more acute by reducing the space between the typebars and the platen.

Third. As the space between the typebars and the platen is reduced, the printing energy which is, in some cases, accumulated by the acceleration of such typebars as they travel from the normal position to the printing position, is proportionately reduced.

Fourth. The greater the space between the typebars and the platen, the louder will be the so noise produced when such typebars strike the platen.

In the new and improved action herein shown and described, four desirable features are First. The type carriers may be spaced a suitable distance apart from the platen so as to provide ample room therebetween to accommodate the width of the arcuate array without having the type carriers on each end make critical angles when they contact the platen.

Second. Despite the comparatively large distance between the type carriers and the platen, the printing contact between the typebars and the platen is practically silent because, as it will be described in detail in the following specification, the bar bearing the type hereinafter termed type carrier is of comparatively short length.

Third. Despite the practically silent contact with the platen, the typebars through new and novel linkages press strongly against the platen so as to produce a plurality of clear copies which is a necessity in many cases.

Fourth. The actual contact between the typebars and the platen is rolling due to the fact that the bottom of the type face contacts the platen first after which the remainder of the face successively contacts the platen, and due to the increase, through the linkages, of the power or pressure applied to the key thereof, controlled printing is provided, one of the characteristics of which is good alignment and accurate interspacing.

The main advantages of the new and improved action in commercial use are its noiseless feature, its printing power and the neat clean-cut impressions. I

While this action is not absolutely silent, the term noiseless" is merely comparative and the 4 noise produced by this action is very little as compared to that produced by existing typewriters.

The term printing power may be taken to mean the .power applied to the key which is stepped up in increasing ratio through the linkages immediately before and as the type comes in contact with the platen.

Due to this printing power a neat impression of the type is obtained on a larger number of copies. Further, the clarity of the printing is materially improved, a feature which has been desirable but unobtainable heretofore.

The surface of all paper has undulations which, in the ordinary typewriter, have to be hammered down to the surface of the platen before it receives the impression of the type. Contrasted with this, the rolling action produced in the new and improved typewriter action irons out any undulation while and as it prints.

Due to this special feature, the results obtained more closely resemble results obtained from an ofl'set printing machine than the results produced by any existing' -typewriter.

In the accompanyingdrawings:

Figure 1 is a side elevation of the new and improved type action in its normal position, at rest;

Figure 2 is a view of the action shown in Figure 1 with the type in an intermediate position;

Figure 3 is an elevation similar to Figure 1 and Figure 2 except that the type has advanced to the printing position;

Figure 4 is a diagrammatic sketch showing a plurality of positions of the type from the normal, at rest, position to the printing position and the positions the linkages assume for the corresponding type positions;

Figure 5 is a cross-sectional view of one of the pivots forming the junction of two of the aovznaoo links, said view being taken along the line 5--5, Figure 3;

Figure 6 is an enlarged diagrammatic view showing the action of the type as it comes in contact with the paper and showing the rolling action of the type while printing; and

Figure 7 is an elevation of a modification of the action shown in Figure 1.

Referring to Figure 1, a key lever i0 is mounted on a stationary fulcrum II and is provided with a key i2. A spring i3 having one end connected to the lever i0 and the other end to a stationary member I4, normally holds the key lever against the stop i5. This stop may be provided with a rubber cushion 56 against which the lever i0 may strike when the key i2 is released.

A second cushion i! may be provided on the key lever thereby permitting both the cushion H and the cushion ii; to come in contact with eachother when the key lever is released.

A lever 8, having one end thereof mounted on a stationary fulcrum I9, is preferably angular in form and has its other end connected to one end of a type carrying member 20 by means of a pivot joint generally designated by the numeral 2|. The pivot 2| is shown more in detail in Figure 5, and all of the other pivot joints hereinafter referred to have the same general structure.

The pivot joint 2| consists of a stud 22 shouldered on each end and passing through holes in the lever l8 and the member 20. A spacing washer 23 may be positioned between the members i3 and 2B for clearance purposes and in actual practice it has been found that the length of the member 22 from shoulder to shoulder is approximately 2/1000ths greater than the thickness of the lever l8, the washer 23 and the member 20.

A washer 24 is applied on top of the member 20 and a washer 25 is applied beneath the lever 58 after which the ends of the stud 22 are riveted. This gives a very rigid structure with substantially no lost motion and at the same time the members l8 and 20 are free to move.

The type carrying member 20 is also preferably angular in shape and carries at one extremity type members 26 and 21.

. The member 20 is connected to one end of a lever 28 by means of a pivot joint 31 which is identical in construction with the pivot 2|. The other end of the lever 28 is connected to one arm 29 of a bell crank 30 by means of a pivot joint 38. The mid-point of the bell crank is connected to the lever I8 by means of a pivot joint 39. The arm 3| of the bell crank 30 is connected to one end of a lever 32 by means of a pivot joint 40. The lever 32 is mounted on a stationary fulcrum 33 and its other end is connected to one end of a pull bar 34 by means of a pivot joint 4|.

The other end of the pull bar is connected to the key lever l0 by means of a pivot joint 42. The platen 35 is positioned in spaced relation to the type member 26 so that when the type is in printing position, the horizontal center line through the platen coincides with the horizontal center line of the type, as shown in Figure 3 and indicated by the numeral 36.

Figure 1 shows the new action in its normal or at rest position; Figure 2 shows the action with the type carrier 20 in an intermediate position which might be termed a dead center" position. When the type carrier 20 is in this position. the lever |8 has made its extreme movement to the right, as viewed in the figures, and at the same time the lever 32 and the arm 3| are almost in line with each other.

As the type carrier 26 continues its movement toward the platen, it follows a curved path due to the combined effect of the movement of the pivot 31 in a clockwise direction through the movement of the lever 28, and due to the counterclockwise direction of the movement of the pivot 2| caused by the movement of the lever |8 to the left.

In other words, the lever l8, up to the dead center position, moves to the right and thereafter reverses and moves to the left.

As this action is more or less complicated, the diagram shown in Figure 4 is provided to show a plurality of successive positions of the type 26 and the positions of the linkages corresponding to said type positions.

The normal position of the movement is shown diagrammatically in solid lines which are given like numerals to those shown in Figures 1, 2, and 3.

When the key I2 is depressed, the lever 32 is moved on its stationary pivot 33 in a counterclockwise direction and the fulcrum 40 assumes the position shown at 40a. The arm 3| assumes the position shown at 3|a; the pivot 39 assumes the position 39a; the arm |8 assumes the position shown at |8a; the pivots 38 and 2| assume the positions shown. at 38a and 2|a, respectively; and the pivot 31 assumes the position shown at 31a thereby the type is moved to the position 26a. The a position is indicated in dotted lines.

During this movement, the type follows a slightly curved path indicated by the numeral 43. The path followed by the pivot 31 is indicated by the numeral 46; the path taken by the pivot 2| is indicated by the numeral 44; the path taken by the pivot 38 is indicated by the numeral 45; and the pivots 39 and 40 each follow circular arcs about the fulcrums l9 and 33 respectively. I

As the key is further depressed, the pivot 40 assumes the position shown at 40b and the other levers and pivots assume the 17" positions, shown in dot-dash lines, with the result that the type assumes the position 261). The path of the type is indicated by the numeral 41; the path taken by the pivot 31 when it moves from the position 31a to 31b is indicated by the numeral 48; the path taken by the pivot 2| is indicated by the numeral 43; and the path taken by the pivot38 during this movement is designated by the numeral 50.

Pivots 39 and 40 still following circular paths about the fulcrums l9 and 33 respectively, assume the positions 3% and 401) respectively.

As the key is still further depressed, the pivot 40 assumes the position 40c; the pivot 39 assumes the position 390 and the other elements assume the positions indicated by their numerals plus a c, and shown in heavy dash lines.

When the elements are in this position, it will be noted that the lever l8, shown in the position I80, has moved to its extreme right position and any further movement of the key will cause this lever to start moving in an opposite direction, or to the left.

The path of .the movement of the pivot 31 from the position 31b to the position 31c is indicated by the numeral 5|. The path of the movement of the pivot 2| is indicated by the numeral 52; and the path of the pivot 38 is indicated by the numeral 53.

Further depression of the key moves the pivot 40 to the position 40d and the pivot 39 to the position 39d, and moves all of the elements of the action to the positions shown in dash-double dot lines.

It will be noted that the lever |8 has moved from the position |8c to the position |8d in a counterclockwise direction (opposite to its first movement). Due to the reverse movement of the lever l8, the path taken by the pivot 31 in moving from the position 310 to 31d,is more sharply upward than the movement from the b to the 0 position, indicated by the numeral 5|.

Because of the fact that the pivot 31 is moving upwardly and the pivot 2| is moving in a reverse direction, the path taken by the type 26 is beginning to curve downwardly and the face of the type begins its rolling motion which terminates when it contacts the platen 35.

Still further depression of the key moves the pivot 46 from the position 40d to the position We thereby bringing the lever l8 still further to the left to the position indicated by the numeral |8e, all of the elements of the action in this position being shown in heavy dotted lines.

The movement to the position |8e brings the pivot 2| from the position 2 hi to the position 2 le. At the same time the pivot 31 is moved from the position 31d still further upward to the position 31c, the combined movement resulting in the moving of the type to the position 26c along the curved line 54 as indicated in Figure 4.

As the key moves still further down, the pivot 40 moves from the position 40c to the position 40f, resulting in the movement of the lever l8 from the position |8e to the position lBf shown in heavy solid lines and bringing the pivot 2| still further to the left to the position 2|f, at the same time the lever 28 moves from the position 26c to the position 28f and the pivot 31 carried thereby moves still further upward from the position 31c to the position 31; resulting in the movement of the type 26 to the position indicated by the numeral 26f.

As the key is still further depressed to the end of its stroke, the fulcrum 40 moves from the position 40f to the position 409 and the linkages assume the position shown in heavy dotdash lines. It will be noted that the pivot 2| moves still further to the left from the position 2|f to the position 2|g and that the pivot 31 moves from the position 31f still further upward to the position 31!] thereby bringing the face of the type 26 to the position 26g in contact with the platen 35.

As the diagram shown in Figure 4 would be more complicated if the rolling action were shown therein, Figure 6 isprovided showing the increment of movement of the type in contacting the platen. For example, when the position 26s is reached by the type, the lower corner 55 first makes contact with the platen 35 and the surface of the type is "successively brought into contact with the platen until the upper corner 56 comes in contact with the platen. The type is then in the position designated by the numeral 26g.

If the platen 35 were removed, thetype would assume the position 261'. 7

Having explained the diagram, Figure 4, it will be noted that the type 26 moves along the-path 43, 41, 54 and that this path, from the position 260, curves downwardly to a substantial degree.

It will also be noted that the pivot 31 follows a path which bears upwardly and when the position 31b is reached, its movement is more sharply upward and the successive positions are still more sharply upward. The pivot 2i follows the path 44, 49, 52 along the curved line to the right, after which it reverses, along the same curved line from the position Zlc to'the position 2lg.

The path taken by the pivot 38 moves upwardly to the right assuming the positions 38a and 38b and in successive positions, its movement is more sharply upward to the position 38; and the movement is not so sharply upward in assuming the position 38g from the position 38 The path of the pivot 39 is through the arc of a circle having the fulcrum l9 as the center and is clockwise until the c position is assumed, after which it is counter-clockwise.

The pivot 38, in moving to the position Lilla, follows an arc of a circle and the movement of the pivot 5? to the position 3712 is almost 5 times as great as the movement of the pivot d!) to the position dflc.

The movement of the pivot 37 from the position 37a. to the position 3%, as indicated by the numeral 28, is about three and a half times the movement made by the pivot it] in moving from the position a e to the position 30b.

The movement of the pivot 37 from the position 372; to the position 310, indicated by the numeral is a little over one and a half times the movement made by the pivot 19 from the position 6% to the position it e.

The movement of the pivot 22? from the position 370 to the position 31d is approximately three fourths of the distance made by the movement of the pivot it in going from the position 490 to the position 501.

It will also be noted that the movement from the position 37d to the position Sle is substantially less than the movement of the pivot do from the position llld to the position tile.

The movement of the pivot 37 from the position 376 to the position 31) is slightly less than the movement of the pivot All} from the position llle to the position 30]; and the movement of the pivot 37 from the position Elf to the posi tion 379 is practically the same as the movement of the pivot ill from the position 30 to the position 40g.

This shortening up of the movement is due to the changes in positions of the linkage and is particularly due to the fact that the lever 18 moves retrograde during the last portion of the stroke.

As the path of movement of the pivot 3'! shortens, the power of the key over the type 269 through the medium of the linkage increases, so that when the face of the type reaches the platen, the last part of pressure applied to the key is applied to the type through this powerful linkage, thereby enabling the production of more perfect copies than has heretofore been possible to obtain from a noiseless typewriter.

In the embodiment herein shown and described, all of the angles formed in the various members of the action are preferably laid out on an angle of 45 or a multiple thereof but it is distinctly understood that these angles may be changed without departing from the spirit of the invention.

While the type 21 is shown out of line with the center line of the platen it is obvious that it can be brought into line with the platen by shifting the platen downwardly, or by moving the member supporting the fixed fulcrums H, H and acvnaoe 33 upwardly. Either option may be accomplished with a shift key in the usual manner. As such movements are well known in the art they need not here be described in detail.

The energy applied to the key is delivered to the type 26 through two separate paths. In this specification, one of the paths will be termed an ordinary path and the other an extraordinary path.

Referring to Figures 1, 2, and 3, the energy through the ordinary path is delivered to the fulcrum 3? via the arm 29 and the arm 28. Energy through the "extraordinary path is delivered to the type carrier via the lever l8 and the fulcrum 25.

During the first part of the stroke and up to the position 2% of the type, the energy is delivered to the type carrier 26 only through the ordinary path. From this position on to the printing position, the energy is delivered to the type carrier via both the ordinary and the extraordinary paths.

During the latter portion of the stroke, the pivotal movement of the type carrier 2!] is about a constantly changing point between the pivot 2i and the pivot 37. This pivotal movement, as the type approaches the platen, brings the type more nearly in line with the surface of the platen and causes the lower end of the face of the type to come in contact with the platen first and as the movement further progresses, the surface of the face of the type is successively brought into contact with the platen until the entire face of the type is in contact with the platen.

In the modification shown in Figure 7, a type carrier 5'! has secured thereto a type member 552 and is connected by means of a pivot joint 59 to one end of a straight lever 80. The other end of the lever 60 is connected by means of a pivot joint 3i to one arm 62 of a bell crank 33. The other arm 5 3 of the bell crank is connected by means of a pivot joint 65 to a lever 66.

The bell crank 63 is connected by means of a pivot joint 57 to a lever 68. The other end of the lever 66 is connected by means of a pivot joint 69 to a lever "ill and a lever ll. The lever ii) is mounted on a fixed fulcrum l2 and has its other end connected to a pull bar '13 by means of a pivot joint i i. The other end of the pull bar 13 is connected to the key lever by means of a pivot joint 16. One end of the key lever is mounted on a fixed fulcrum l7 and the other end is provided with a key 78.

The lever 68 is connected to a lever 79 by means of a pivot 86 and is connected to the lever it by means of apivot 85. The end of the lever 68 is mounted on a fulcrum 82. An arm 83 has one end connected to the lever '19 by means of a pivot joint 8 and the other end connected to the lever "II by means of a pivot joint 85. The upper end of the lever 79 is connected to the lower end of the type 5'1 by means of a pivot join 86.

When the key 18 is depressed and moved to the position 18a the linkages and pivots assume the positions shown in light dot-dash lines. This brings the type 58 from its elevated position to a position near the platen indicated by the numeral 58a.

As the key 18 is further depressed to the position 182; the pivots and linkages assume the positions shown in heavy dotted lines and the type is shown in the printing position and in contact with the platen 87, and indicated by the numeral 582).

It will be noted that the short movement of the key from the position 18 to the position 18a moves the type 58 through a substantial distance which is approximately more than ten times the movement of the key. The type in moving from the position 580 to the position 581) only moves about three times as far as the key does in moving from the position 18a to the position 1817.

The lever 68 moves clockwise until it reaches the position 680 and from then on it reverses its direction of movement and comes to rest at the position 681) when the type 58 contacts the platen.

Although this movement is similar in some respects to the movement shown in Figures 1, 2, and 3, it is comprised of more parts and is therefore more expensive to manufacture and consequently the movement shown in Figures 1, 2, and 3 is believed to be preferable.

This latter movement is of such form that it can be mounted in frames of existing typewriters of the universal bar type now in wide use.

It has distinct advantages in that. the work is always visible; there is plenty of room for erasures and corrections; the action is substantially noiseless and, although it is noiseless, many more, legible copies can be made due to the power applied to the type during the last stage of. its motion, through the medium of the powerful linkages.

Because of the small number of parts and due to the fact that all of the fulcrums and pivot joints are made with "working fl instead of sloppy fits as has been the practice heretofore in noiseless typewriters, there is no lost motion in these joints therefore perfect alignment, both horizontally and vertically, is obtained and the consequent perfect or beautiful printing is effected due to the rolling action of the type when it comes immediately adjacent to the platen.

Although two simple embodiments of the invention are herein shown and described, it is obvious that many changes may be made by those skilled in the art without departing from the spirit of the invention as defined in the accompanying claims.

What is claimed is:

1. In a typewriter having a platen and a plurality of type carrying members, the method of reducing the noise of the. contact of the type with the platen, which consists in applying force in the same direction to one of said members by means of two mediums, thereby tending to move the member along a path extending from a position of 'rest to said platen; and while said member is in motion, changing the direction in which said force is applied by one of said mediums, thereby progressively distorting said path as ,the type approaches the platen.

2. The method according to claim 1 in which said member is moved to a position near the platen before force applied thereto throughsaid last medium is changed in direction.

3. The method according to claim 1 in which the face of the type is brought into contact with the platen progressively.

4. In combination, a platen, a type carrier hearing a type element, a key, a key lever supporting said key, linkage between said key lever and said type carrier for moving the latter from its normal position toward said platen, and a pivoted member interconnected with said linkage and said type carrier, and adapted to impart a pivotal movement of changing radii to said type carrier and a resultant rolling movement to said type as it approaches and comes into contact with the platen.

5. In a device of the character described, a support, a platen, a carrier bearing a type element, a key, a key lever supporting said key, a lever fulcrumed on said support, a pivot connecting one end of said carrier to said lever, a bell crank fulcrumed on said lever, a link connecting one arm of said bell crank with said carrier, a second lever fulcrumed on said support end having one end pivotally connected to the other arm of the bell crank, and a pull bar connecting said second lever to said key lever.

6. In a device of the character described, a support, a platen, a carrier bearing a type member, a key, a key lever supporting said key, a lever fulcrumed on said support, a pivot connecting one end of said carrier to said lever, a second lever having one end pivotally connected to said carrier, and means connecting said levers to said key lever, said means including a third lever fulcrumed on said support and adapted. to swing said first lever on its fulcrum in fixed relation to I lation to said second lever during the remainder of said key stroke.

7. In a device of the character described, a support, a platen, a carrier bearing a type member, a key, a key lever supporting said key, a lever fulcrumed on said support, a pivot connecting one end of said carrier to said lever, a second lever having'one end pivotally connected to said carrier, and means connecting said levers to said key lever, said means including a third lever fulcrumed on. said support and connected by means of a pull bar to said key lever and adapted, when the key lever is depressed, to swing said first lever on its fulcrum in fixed relation to said second lever for a portion of the key stroke, and adapted to swing said first lever on its fulcrum in an opposite direction and in changing relation to said second lever the remainder of said stroke.

8. In a device of the character described, a support, a platen, a carrier bearing a type member, a key, a key lever supporting said key, a lever fulcrumed on said support, a pivot connecting one end of said carrier to said lever, a second lever' and second levers for moving said carrier from a normal position toward said platen, maintaining said first and second levers in fixed relation during a portion of the movement and varying the relation between said first and second levers for the remainder of the movement.

9. In a device of the character described, a support, a platen, a carrier bearing a type element, a key, a key lever supporting said key, a lever fulcrumed on said support, a pivot connect ing said carrier to said lever, a bell crank pivotally supported on said lever, a link connecting said bell crank to said carrier, a second lever fulcrumed on said support and having one end pivotally connected to said bell crank, and a pull bar connecting said second lever to said key lever, the pivotal support of said bell crank being adapted to act as a fulcrum during a portion of a key stroke and as a pivot during the remainder of the key stroke.

10. In a device of the character described, a support, a platen, a carrier bearing a type element, 2. key, a key lever supporting said key, a lever fulcrumed on said support, a pivot connecting one end of said carrier to one end of said lever thereby making the latter a support for said carrier, a bell crank fulcrumed on said lever, a link member connecting one arm of said bell crank with said carrier, a second lever fulcrumed on said support, having one end pivotally connected to the other arm of the bell crank and normally at rest in angular relation to said other arm of the bell crank, and means for moving said last lever about its fulcrum to propel said carrier toward said platen thereby bringing the same straight in line with said other arm of' the bell crank to position said carrier adjacent to said platen and thereafter bringing said latter lever and said other arm into angular relation opposite in phase to said normal position to com plete the movement of said carrier thereby bringing the type member thereon into printing contact with said platen.

11. In a device of the character described, a support, a platen, a carrier bearing a type element, a key, a key lever supporting said key, a lever fulcrumed on said support, a pivot connecting one end of said carrier to one end of said lever, a bell crank fulcrumed on said lever adjacent to the fulcrum of said lever, a link having one end pivotally connected to one arm of the bell crank and having its other end pivotally connected to said carrier at a point between the ends thereof, a second lever fulcrumed on said support and having one end thereof pivotally connected to the second arm of said bell crank, and means connecting said second lever to said key lever, said first lever serving as a support for said carrier said bell crank and said link, and

adapted during a portion of a key stroke, to move in one direction, and to move in an opposite direction during the remainder of the key stroke thereby causing the type member on said carrier to follow a path becoming increasingly curvilinear in character and of shortening radius as it approaches and contacts the platen.

12. A typewriter movement including a type carrier having an angular arm extending therefrom, a lever, a fulcrum supporting said lever, a pivot connecting the end of said arm with one end of said lever, a bell crank fulcrumed on said lever, a link having one end pivotally connected to one arm of said bell crank and the other end pivotally connected to ,the arm of said type carrier at a point spaced apart from said first pivot, said lever, said arms and said link normally forming an irregular quadrangular figure, and means connected to the other arm of said bell crank for moving said type member along a path, said a means adapted to move said lever in one direction during a portion of said movement and to move said lever in an opposite direction during the remainder of the movement, said lever, the arm of said carrier, said first arm of the bell crank and said link being maintained in fixed relation during the first portion of said movement and being progressively varied in relation during the remainder of the movement.

13. The invention according to claim 12 in which a platen is provided; in which a frame is provided for supporting said fulcrum and said platen; and in which said means includes a key lever fulcrume'cl on said frame, whereby said type member is given a rolling movement as it ap- I proaches and contacts the platen.

SEYED KHALIL. 

